Home / 31,588,501.92-43,592,421.09-18,535,978.32

Finding the Fourth Proportional to 31,588,501.92, 43,592,421.09 and 18,535,978.32

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Solution

The fourth proportional to 31,588,501.92, 43,592,421.09 and 18,535,978.32 is: 25,579,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,588,501.92 : 43,592,421.09 = 18,535,978.32 : x
  2. Step 2: Convert to fraction form
    31,588,501.92/43,592,421.09 = 18,535,978.32/x
  3. Step 3: Cross multiply
    31,588,501.92x = 43,592,421.09 × 18,535,978.32
  4. Step 4: Simplify right side
    31,588,501.92x = 808,028,172,240,550.88
  5. Step 5: Solve for x
    x = 808,028,172,240,550.88/31,588,501.92
  6. Step 6: Final answer
    x = 25,579,819.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.